Apparatus for cutting roofing sheets



Nov. 25, 1 4- R. 15,955

A. S. SPEER APPARATUS FOR CUTTING ROOFING SHEETS Original Filed April 5, 1919 :s Shets-Sheet 1 I [72 we 2'57." 17 Zexczraaerj fpee r Nov, 25, 1924. Re. 15,955

' A. S. SPEER APPARATUS FOR CUTTING ROOFING SHEETS Original Filed April 5.1919 s Sheets-Sheet. 2

OVQzs, 24.

A. s. SPE'ER APPARATUS FOR CUTTING ROOFING SHEETS Original Fiied April 5, 1919 5 Sheets-Sheet 3 signed to cut such llice on the'Tth day of Reiuued Nov. 25, 1924.

UNITED STATES 3 5 PATENT OFFICE.

ALEXANDER- S. SPEER, 0F BUFFALO, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS,

To THE BEAVER raonuc'rs comramr, Inc A ooaPoaA'rm'N or New Yonx.

APPARATUS son comma noosme SHEETS.

Original No. 1,352.154,

dated September 7,1920, Serial No. 237.519, filed 4 m 5',

1919. Application for reissue filed Noyember 23, 1921. Serial lie. $17,384

To all who: it My, concern.

Be it known that l, Annxaxnnn 5. 51mm, a citizen of the United States. residing at- Buffalo. in the county of Erie and State of New {pl-k. have invented an Improvement in Apparatus for (titling Roofing Sheets, of which the lpllkrwing is a specification.

My reseit' invention relates to improvements in apparatus for cutting roofing slabs or shingles from sheets of composite material and the invention aims to provide a simple, economical and etlicient machine which will cut such shingles or slabs with a minimum waste of material.

The invention includes the novel features of construction and arrangement of parts hereinafter described and particularly de fined by the appended claims.

An embodiment of my invention is illustrated in the accompany drawings, in which,

'Figure 1 is a lan view of a form of niachine constructed in accordance with my invention;

Fig. 2 is'a side elevation. and

gig. 3' is asectional detail.

' ly )rcsent machine is designed more cspecia ly for cutting roofing slabs having diagonal edges, such as disclosed in an application-filed by me in the U58. latent Number. 288.035, and is herein shown as deslabs or shingle un ts with shingle projections on the, lower edge or that ed e ram shingle whiehis exposed when app jed'to a roof.

In the present drawings also .the machine is shown handle av V ti'ipor sheet of rooting material sixty-foil inches wide and to cut therefrom two rows'ofslabs or'shlngles. S n-ha sheet of rooting material is indicated in thedrawings at 1 andit is fed between upper and i lower slitting rollers 2 and 3, which it in a manner and for a purpose hereinafter more fully s eti" forth. Thence the sheet passes'between the upper, and lower feed" .ed table 6". To sever "rated or irregular ed opposite sides of the rollers 4 and 5 to the p the sheet into slabs having one straight (upper') edge and one tongued edge I k H cutters having respeotiyelystraight and irregular ediges" and these cutters c'oact with a correspon ing'ly alternately changing die face which is held stationary during the cutmentaryspaces.

April. 1919; Serial" for eonveniencea's of awidth to (lower) serrated or provide alternately acting' ting and severing operation. In the embodiment shown in the drawings I have shown,

shown at 6*, this configuration being one comprising trapezoidal or semi-hexagonal projections separated by equal and comple- Varions means might be provided to secure alternatel dies to coact with the alternately acting cutter blades but the arrangement which Ihave deemed. the simplest and herein shown is to provide a stationary straight shearing die or member 8 which may be conveniently removahly supported by'a die carrier 9 securedto or forming a part of the frame of the machine. i

This die 8 coacts with the straight edge 6 of the severing knife and also with the advanced portions 7) of the edge 6. For cooperating with the recessed portions 11 of the edge 6 provide removabl shear block or die members 10 which have curved shanks 10 hinged to lugs 9 on the bar 9 and these members 10 are connected by links ll with arms 12 carried by a rock shaft 13.

[Fast onthis rock shaft is an' arm 14 which is connectedby pitman 15, with a crank arm 16 on'i shaft 1 7." This shaft ,1 71is continuously driven an'dj'so timedwrelative to the m'e l bers 10 are presented inv position to copositioned act with knlfe edge 6" and are withdrawn or 2 dropped down out. of they way to allow the straighthdie rnember'g-to court with the straight knife edge Ge. i

Itjwill hus be een that at each halt vii-- tation of the cutter! (:1 the; cooperating straight. edges of the cutter and diei cutthe straight edges of shingles l vi1 g on both sides of'the'line of cute and on the M next. half rotation the irregular 'euttingedge andthe shear block or die similarly form-the ser onal. edges "hereinbefore re ferred'to I arran e the cutter shaft diagonal o r-inclined to t e mama preferably in such relation to theshe'etthat the side'edges of the sheet es of the shingles on will coincide with or form the sides of the terminal tongues on the serrated edge.

For shingles or slabs of some dimensions it is better to have the edge of the shingle ofl'set slightlv "from the side wall of the tongue as in icated by the lines on the sheet of material where 1 designates the tongue and 1. the otfset edge referred to.- This is accomplished by the slitters 2 and above referred to which are segments of circles and which cooperate to form isolated slits in the sheet prior to the action of the cutters and which slits define the end edges of the individual slabs or shingles. The central slitters designated 2* and 2" respectively are arranged so as to cut. slits in staggered relation as shown.

The various moving parts are connected up by gearing as shown diagrammatically and may be driven from'any suitable source of ower, not shown.

Ilaving thus described my invention what I claim is:

1. Apparatus of the character described comprising means for feeding a sheet of material, a pair of alternately acting cutprising a rotary shaft. a

ters having differentdie for cooperating with one cutter, and supplemental die means movable into and out of juxtapositionto said stationary die for cooperating with the other cutter.

2. Apparatus of the class described comprising a pair of alternately acting cutters. of different profile moving in sul'istantially the same path, and die means having alternately changing profile to cooperate with said cutters.

3. Apparatus of the class profiles, a stationary described compair of cutting blades carried thereby. having cutting edges of different profile moving in sub stantially the same path. a stationary die cooperating with the edge of one blade, and supplemental die means moved into and out of juxtaposition to said stationary die to cooperate with the other blade.

4. Apparatus of the class described comprising arotary shaft. :1 pair of cutting blades carried thereby,.one having astraight blade and the other a notched blade, 9. straight edged stationarydie member for cooperating with said straight edged cutter, and movable, supplemental die means cooperating with said straight edged die to coact with said notched blade.

'5. Apparatus of the class described comprising a rotary shaft, :1 pair of cutting blades carried thereby, one having a straight blade and the other a notched blade, a straight edged stationary die member for cooperating with said straight edged cutter. a plurality of supplemental die members, and means for moving them into juxtaposition .to said straight edged die to cooperate with the notched blade.

6. Apparatus of'the characterdescribed com rising sheet feeding means, a rotary shaft a. pair of cutting blades carried thereby, one having a straight edge and the other having its edge provided with flaring recesses, said shaft bein disposed at an inclination to the line of f ded corresponding to the inclination of the recess wall,- a stationary die for cooperating with the straight edged cutter. and supplemental die means movable into and out of juxtaposition to said stationary die for cooperating with the notched blade. 7

7. Apparatus of the class described comprising a straight edged cutter and a recessed cutter with means for bringing them alternately into cutting position, a straight edged stationary die cooperating with said straight edged cutter, supplemental die means corresponding to the recesses of the second named cutter and hinged on fixed axes, and means for swinging said supplemental die means into juxtaposition to said stationary die to cooperate with said recessed cutter.

8. In a machine for cutting flexible sheet roofing into shingle units, the combination with a frame and means for feeding the sheet roofing of a shear block having a cutting edge with alternating projections and recesses. said projections being semihexagonal in shape, said cutting edge being arranged at an angle to the sheet so that one side of the PXOJPCtlODS on said cutting edge is parallel to the side edge of said sheet, and a rotary cutter having its axis parallel to the general line of said shear block cutting edge andfhaving a cutting edge to cooperate with said shear block cutting edge, 'and adapted to sever a shingle ltlt) unit diagonally of said sheet, so that one 7 an inclination to the line of feed corresponding to the inclination of the recess wall, and ,lb die means for cooperating with said cutting. blade.

Amaj'hine of the character described, comprising a pair of successively acting cut ters and with cutting member for cooperating with the other of said cutters, and means for moving said movable cutting member into and out of operative 11. A'machme of the character described, comprising a cutting device, a cutting memberfor cooperating with said cutting device to act on material, a movable member constructed and arranged to cooperate at intervals with said cuttin device, and means for moving said mova le member into and out of operative position relative to said cutting device.

12. A machine for forming shingle units from flexible sheet roofing material, com-' prising in combination a pair of successively acting cutters of different contours, means for feeding material toward said cutters, and a cooperating cutting member, said cutter and cutting member being constructed and arranged to act on materials on lines oblique to the feed of said material, thereby to form shingle units having inclined ends. 13. A machine for cutting flexible sheet roofing into shingle units, comprisin in combination a frame having means for eeding the sheet roofing, an obliquely arranged shear member having a cutting edge with alternating pro'ections and recesses similar in outline to t at of the front edge of a shingle unit and arranged diagonally of said sheet, a movable cutter arranged to cooperate with said shear member cutting edge and arranged to operate on said sheet obliquely to the travel thereof, said feeding meins cooperating with said movable cutter to advance the sheet toward the cutter, whereby the latter severs a shingle unit from said sheet on the bias.

14. A machine for forming from flexible sheet roofing material shingle units having projections and recesses along their edges, comprising in combination, a frame havim means for feeding a sheet of said matmia a rotary cutter having projections and recesses corresponding in contour with an edge of the shingle unit to be cut thereby, a cooperating cutting member arranged to cooperate with the cutter for acting on the sheet, said cutter and cutting member being arranged obliquely to out said sheet on lines oblique to the'travel of said sheet.

15. In a machine for forming shingle units from flexible sheet roofing material, the combination comprising a frame and 'means for feeding a sheet of said material,

edges of the shingle unit to be formed, and

mechanism for operating said cutting member at intervals to act on said sheet, whereby said shingle units are formed from said sheet on the bias.

16. A machine for forming recmd shingle units from flexible sheet roofing materia comprising in combination a frame having means for feeding a sheet of material, a cutter having projections and recesses corres onding in contour with an edge of the shingle unit to be cut thereby, a cooperating cutting member constructed and arranged to coo erate with the cutter for acting on the eet, said cutter and cutting member arranged to be oblique to the travel of said sheet.

17. A machine for forming shingle units from flexible sheet roofing material, comprising in combination, a frame having means for feeding a sheet of material, a cutter having projections and recesses corresponding in contour with an edge of the shin le unit to be cut thereby, a cutting mem r having projections and recemes corresponding 1n contour with the edge of said cutter and cooperating therewith to cut said sheet, said cutter and cutting member A being arranged obliquely to the direction of travel of said sheet to out said sheet on the bias, thereby to form shingle units having inclined ends.

ALEXANDER S. SPEER. 

